Improvement in base-burning stoves



LQ. c. s EAnLE.

,Base-Buning Stoves.

zwavomg Patented March11,1873'.

AM. pHoro-mnsmfmca Mmsaamvfls Pnacess) ."JOHN Q. c. sEARLE, or TOPEKA, KANSAS.

IMPROVEMENT IN BASE-BURNING STOVES.

Specification forming part of Letters Patent No. 136,772, dated March 11, 1873.

To all whom it may concern:

Be it known that I, JOHN Q. U. SEARLE, of Topeka, county of Shawnee, State of Kansas, have invented Improvements in Base- Burning Stoves, of which the followingl is a specification: Y

The objects of my invention are, first, to prevent the ignition of the fuel in the magazine of' a basefburning stove, and to dispose of and utilize the gases as they are generated in the saidmagazine second. to provide fora thorough circulation of the heated products of combustion through the stove before they are permitted to pass off; third, to prevent ashes or particles of ignited fuel from dropping through the grate upon the floor when the ash-drawer is removed; and, fourth, a grated fire-pot, composed of parts, any or all of which can be readily detached.

The rst of these objects 4I attain in the manner best observed in Fig'. l. The magazine A communicates freely 4at the top with y a surrounding gas-chamber, B, having no outlet above, and terminating below at a point coinciding with the lower end or mouth of the magazine. The gases, instead of being permitted to accumulate in the magazine, as usual, and thereby induce the ignition of the fuel in the same, are caused to pass over the top of the magazine; thence downward through and out of the mouth a of the gaschamber B, at or below the lower end of which they are ignited by the products of combustion rising from the lire-pot, the gases burning freely, owing to the admission of air through an annular opening, a, in an airchamber, D, the latter surrounding the gaschamber and magazine, and projecting below the same. The chamber D is supplied with air through openings b in the side of the stov'e, and the supply may be regulated by adjusting an annular register, c, with which the said air-chamber is provided.

The second object of my invention-theI circulation of the heated products of combustion through the stove-is obtained by means ofV descending ues E forming a communication between the combustion-chamber F and a chamber, Gr, at the base of the stove, and by ascending flues H, which connect the chamber Gr with a chamber, I, at the top of the stove, the products of combustion passwalls of the stove and around the sides of the said ue's, as indicated by the arrows. When a direct draft is required, valves t o in the sides of the iiues H, within thecombustionchamber, are opened.

The third object of my inventionthe prevention of the dropping of ashes or ignited fuel from between the bars of the grate upon the floor when the ash-drawer is removedis attained by means of a sliding plate, M, Fig. l, adapted to guides at the bottom` of the ashpit just above the drawer P, so that when the latter is removed the plate may be moved across the opening in the bottom'of the ashpit, and thus serve to-catch and retain all falling particles.

The grated fire-pot Q, to improve which is the fourth object of' my invention, is composed of a number of independent and separately-detachable vertical bars, j', Figs. 1, 4, 5, and 6, each formed with a hooked upper end, g, by means of which it is suspended from a circular iiange, h, of the body of the stove, 4and each having upon both sides two lugs, i and i', which maintain the said bars at aproper distance apart from eachother,

and thus form spaces k between the same for the admission of air from the annular space oo surrounding the fire-pot to the mass of ignited fuel contained within the latter. The bars being entirely separate and independent v of each other, any or all of them can be readily removed and replaced by new ones, when such renewal becomes necessary in consequence of the burning out or injuring of the said bars.

I claim as my invention l. A stove in which the gases generated in the magazine are discharged from a passage,

:UNITED 'STATES Parnnrrnrrcn A a', independent of the magazine, among'the unignited mass of coal above the surfaceof the fire. l

2. The combination, in a base-burning stove, of the air-chamber D, and an intervening independent gas-chamber, B, all arranged as described.

3. The combination, in a base-burning stove, of a ue or ues, H, connecting chambers at the top and base of the stove, and Hues E eoml municating with the lower chamber and with the combustionchamber, substantially as described.

4. The deiiectorsK, interposed between the descending draft-fines E and the walls of the air-chamber D, substantially as and for the purpose specified. l

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

JOHN Q. C'. SEARLE.

Witnesses:

WM. A. STEEL, HARRY W. DoUTY. 

